Setup Travis-CI

[mvrozanti]

Due to the recent long push intervals and version-specific failures, I suggest we setup Travis-CI to check which Windows versions are passing and whatnot.

The first step would be to introduce a valid .travis.yml with at least one Windows 7 build on it.

[mvrozanti]

🙄

Worker information
hostname: 65d6aa86-70da-402c-921e-723c7b51dc40@1.production-1-worker-org-gce-l0f1
version: v6.2.0 https://github.com/travis-ci/worker/tree/5e5476e01646095f48eec13196fdb3faf8f5cbf7
instance: travis-job-3c646ba7-ebf8-4e62-9e76-9706ed175cbc travis-ci-onion-1803-containers-1542208204-ad01dca (via amqp)
startup: 1m25.157840957s
Secret environment variables are not obfuscated on Windows, please refer to our documentation: https://docs.travis-ci.com/user/best-practices-security
The language 'python' is currently unsupported on the Windows Build Environment.
Let us know if you'd like to see it: https://travis-ci.community/c/environments/windows. Thanks for understanding!

[mvrozanti]

No problem though, thanks to this badass

Soon I will be adding an obfuscated key so we can actually send/receive messages to test stuff out.